Haven't read all the responses so I apologize if this is redundant. I have found that some manufacturers have different styles that fit differently. What I do is call the seller (Competitive Cyclist for example) and get a rep on the phone. Then I tell them what I'm trying to find and give them all my pertinent info, like ht, wt, chest size, etc., and ask for their advice. Sometimes I get someone built like me but more often they know someone my size and can give me a good idea of what will work.